Heat exchanger housing



FIG. 1 is an isometric view of a heat exchanger housing, showing my newdesign;

FIG. 2 is an elevational view of the end not shown in FIG. 1;

FIG. 3 is an elevational view of the side not shown in FIG. 1;

FIG. 4 is an isometric view of a second embodiment of a heat exchangerhousing.

The ornamental design for a heat exchanger housing, as shown anddescribed.